104779540 has 12 divisors (see below), whose sum is σ = 220037076. Its totient is φ = 41911808.

The previous prime is 104779529. The next prime is 104779541. The reversal of 104779540 is 45977401.

It can be written as a sum of positive squares in 2 ways, for example, as 37112464 + 67667076 = 6092^2 + 8226^2 .

It is a super-2 number, since 2×104779540² = 21957504005223200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104779540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104779541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2619469 + ... + 2619508.

It is an arithmetic number, because the mean of its divisors is an integer number (18336423).

Almost surely, 2^104779540 is an apocalyptic number.

104779540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104779540 is an abundant number, since it is smaller than the sum of its proper divisors (115257536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

104779540 is a wasteful number, since it uses less digits than its factorization.

104779540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5238986 (or 5238984 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 104779540 is about 10236.1877669375. The cubic root of 104779540 is about 471.4389880072.

The spelling of 104779540 in words is "one hundred four million, seven hundred seventy-nine thousand, five hundred forty".